找到达到这个强度所需的时间，对于指导混凝土配合比设计和混凝土施工有着重要的意义。
It is very important for concrete designer and for concrete construction to know the time of the concrete grows this critical strength.
介绍聚丙烯高性能纤维混凝土的配合比设计、施工、技术性能及应用情况。
This paper introduces the mixing ratio design, construction, technical performance and application of polypropylene high-performance fiber concrete.
对铁尾矿做路面基层的材料选择、配合比设计和施工工艺进行了较详细的阐述。
The material selection, mix-gradation design and construction technology for using iron tailings as pavement base are described in detail.
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